mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-19 13:48:06 +00:00
Code cleanup
SVN-Revision: 6777
This commit is contained in:
Florian Fainelli
parent
227346dd55
commit
c3697977ab
@ -1,245 +1,115 @@
|
||||
/*******************************************************************
|
||||
* Simple Flash mapping for RDC3210 *
|
||||
* *
|
||||
* 2005.03.23 *
|
||||
* Dante Su (dante_su@gemtek.com.tw) *
|
||||
* Copyright (C) 2005 Gemtek Corporation *
|
||||
*******************************************************************/
|
||||
/*
|
||||
* $Id$
|
||||
* Copyright (C) 2005 Gemtek Corporation, Dante Su (dante_su@gemtek.com.tw)
|
||||
* Copyright (C) 2006 Florian Fainelli <florian@openwrt.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <asm/io.h>
|
||||
#include <linux/mtd/mtd.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/mtd/map.h>
|
||||
#include <linux/mtd/mtd.h>
|
||||
#include <linux/mtd/partitions.h>
|
||||
#include <linux/config.h>
|
||||
#include <linux/vmalloc.h>
|
||||
|
||||
#ifndef RDC3210_STATIC_MAP
|
||||
#define RDC3210_STATIC_MAP 0
|
||||
#endif
|
||||
#ifndef RDC3210_FACTORY_DFLT
|
||||
#define RDC3210_FACTORY_DFLT 0
|
||||
#endif
|
||||
#ifndef RDC3210_USING_JFFS2
|
||||
#define RDC3210_USING_JFFS2 1
|
||||
#endif
|
||||
#define WINDOW_ADDR 0xFFC00000
|
||||
#define WINDOW_SIZE 0x00400000
|
||||
#define BUSWIDTH 2
|
||||
|
||||
#define WINDOW_ADDR 0xFFC00000
|
||||
#define WINDOW_SIZE 0x00400000
|
||||
extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long fis_origin);
|
||||
|
||||
#define BUSWIDTH 2
|
||||
static struct mtd_partition *parsed_parts;
|
||||
static struct mtd_info *rdc3210_mtd_info;
|
||||
|
||||
/* Dante: linked from linux-2.4.x/drivers/mtd/chips/flashdrv.c */
|
||||
extern int flashdrv_get_size(void);
|
||||
extern int flashdrv_get_sector(int addr);
|
||||
extern int flashdrv_get_sector_addr(int sector);
|
||||
extern int flashdrv_get_sector_size(int sector);
|
||||
|
||||
static struct mtd_info *rdc3210_mtd;
|
||||
|
||||
__u8 rdc3210_map_read8(struct map_info *map, unsigned long ofs)
|
||||
{
|
||||
return *(__u8 *)(map->map_priv_1 + ofs);
|
||||
}
|
||||
|
||||
__u16 rdc3210_map_read16(struct map_info *map, unsigned long ofs)
|
||||
{
|
||||
return *(__u16 *)(map->map_priv_1 + ofs);
|
||||
}
|
||||
|
||||
__u32 rdc3210_map_read32(struct map_info *map, unsigned long ofs)
|
||||
{
|
||||
return *(__u32 *)(map->map_priv_1 + ofs);
|
||||
}
|
||||
|
||||
void rdc3210_map_write8(struct map_info *map, __u8 d, unsigned long adr)
|
||||
{
|
||||
*(__u8 *)(map->map_priv_1 + adr) = d;
|
||||
}
|
||||
|
||||
void rdc3210_map_write16(struct map_info *map, __u16 d, unsigned long adr)
|
||||
{
|
||||
*(__u16 *)(map->map_priv_1 + adr) = d;
|
||||
}
|
||||
|
||||
void rdc3210_map_write32(struct map_info *map, __u32 d, unsigned long adr)
|
||||
{
|
||||
*(__u32 *)(map->map_priv_1 + adr) = d;
|
||||
}
|
||||
|
||||
void rdc3210_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
|
||||
{
|
||||
int i;
|
||||
u16 *dst = (u16 *)(to);
|
||||
u16 *src = (u16 *)(map->map_priv_1 + from);
|
||||
|
||||
for(i = 0; i < (len / 2); ++i)
|
||||
dst[i] = src[i];
|
||||
|
||||
if(len & 1)
|
||||
{
|
||||
printk("# WARNNING!!! rdc3210_map_copy_from has odd length\n");
|
||||
//dst[len - 1] = B0(src[i]);
|
||||
}
|
||||
}
|
||||
|
||||
void rdc3210_map_copy_to(struct map_info *map, void *to, unsigned long from, ssize_t len)
|
||||
{
|
||||
int i;
|
||||
u16 *dst = (u16 *)(map->map_priv_1 + to);
|
||||
u16 *src = (u16 *)(from);
|
||||
|
||||
for(i = 0; i < (len / 2); ++i)
|
||||
dst[i] = src[i];
|
||||
|
||||
if(len & 1)
|
||||
{
|
||||
printk("# WARNNING!!! rdc3210_map_copy_from has odd length\n");
|
||||
//dst[len - 1] = B0(src[i]);
|
||||
}
|
||||
}
|
||||
|
||||
struct map_info rdc3210_map =
|
||||
{
|
||||
name: "RDC3210 Flash",
|
||||
size: WINDOW_SIZE,
|
||||
buswidth: BUSWIDTH,
|
||||
read8: rdc3210_map_read8,
|
||||
read16: rdc3210_map_read16,
|
||||
read32: rdc3210_map_read32,
|
||||
copy_from: rdc3210_map_copy_from,
|
||||
write8: rdc3210_map_write8,
|
||||
write16: rdc3210_map_write16,
|
||||
write32: rdc3210_map_write32,
|
||||
copy_to: rdc3210_map_copy_to,
|
||||
static struct map_info rdc3210_map = {
|
||||
.name = "rdc3210",
|
||||
.size = WINDOW_SIZE,
|
||||
.bankwidth = BUSWIDTH,
|
||||
.phys = WINDOW_ADDR,
|
||||
};
|
||||
|
||||
/* Dante: This is the default static mapping, however this is nothing but a hint. (Say dynamic mapping) */
|
||||
static struct mtd_partition rdc3210_parts[] =
|
||||
{
|
||||
{ name: "linux", offset: 0, size: 0x003C0000 }, /* 3840 KB = (Kernel + ROMFS) = (768 KB + 3072 KB) */
|
||||
{ name: "romfs", offset: 0x000C0000, size: 0x00300000 }, /* 3072 KB */
|
||||
{ name: "nvram", offset: 0x003C0000, size: 0x00010000 }, /* 64 KB */
|
||||
#if RDC3210_STATIC_MAP || RDC3210_FACTORY_DFLT
|
||||
{ name: "factory", offset: 0x003D0000, size: 0x00010000 }, /* 64 KB */
|
||||
#endif
|
||||
{ name: "bootldr", offset: 0x003E0000, size: 0x00020000 }, /* 128 KB */
|
||||
static struct mtd_partition rdc3210_parts[] = {
|
||||
{ name: "linux", offset: 0, size: 0x003C0000 }, /* 3840 KB = (Kernel + ROMFS) = (768 KB + 3072 KB) */
|
||||
{ name: "romfs", offset: 0x000C0000, size: 0x00300000 }, /* 3072 KB */
|
||||
{ name: "nvram", offset: 0x003C0000, size: 0x00010000 }, /* 64 KB */
|
||||
{ name: "factory", offset: 0x003D0000, size: 0x00010000 }, /* 64 KB */
|
||||
{ name: "bootldr", offset: 0x003E0000, size: 0x00020000, mask_flags: MTD_WRITEABLE },/* 128 KB */
|
||||
};
|
||||
|
||||
#if LINUX_VERSION_CODE < 0x20212 && defined(MODULE)
|
||||
#define init_rdc3210_map init_module
|
||||
#define cleanup_rdc3210_map cleanup_module
|
||||
#endif
|
||||
|
||||
mod_init_t init_rdc3210_map(void)
|
||||
static int __init rdc3210_mtd_init(void)
|
||||
{
|
||||
printk(KERN_NOTICE "flash device: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR);
|
||||
|
||||
rdc3210_map.map_priv_1 = ioremap(WINDOW_ADDR, WINDOW_SIZE);
|
||||
printk(KERN_INFO "rdc3210: 0x%08x at 0x%08x\n", WINDOW_SIZE, WINDOW_ADDR);
|
||||
rdc3210_map.virt = ioremap_nocache(WINDOW_ADDR, WINDOW_SIZE);
|
||||
|
||||
if (!rdc3210_map.map_priv_1)
|
||||
{
|
||||
printk("Failed to ioremap\n");
|
||||
if (!rdc3210_map.virt) {
|
||||
printk(KERN_ERR "rdc3210: failed to ioremap\n");
|
||||
return -EIO;
|
||||
}
|
||||
rdc3210_mtd = do_map_probe("cfi_probe", &rdc3210_map);
|
||||
#if RDC3210_STATIC_MAP /* Dante: This is for fixed map */
|
||||
if (rdc3210_mtd)
|
||||
|
||||
simple_map_init(&rdc3210_map);
|
||||
|
||||
rdc3210_mtd_info = do_map_probe("cfi_probe", &rdc3210_map);
|
||||
|
||||
if (rdc3210_mtd_info)
|
||||
{
|
||||
rdc3210_mtd->module = THIS_MODULE;
|
||||
add_mtd_partitions(rdc3210_mtd, rdc3210_parts, sizeof(rdc3210_parts)/sizeof(rdc3210_parts[0]));
|
||||
return 0;
|
||||
}
|
||||
#else /* Dante: This is for dynamic mapping */
|
||||
rdc3210_mtd_info->owner = THIS_MODULE;
|
||||
int parsed_nr_parts = 0;
|
||||
char * part_type;
|
||||
|
||||
#include <gemtek/sysdep.h>
|
||||
#include <gemtek/imghdr.h>
|
||||
|
||||
if (rdc3210_mtd)
|
||||
{ // Dante
|
||||
#if RDC3210_USING_JFFS2
|
||||
unsigned int tmp, tmp2 = rdc3210_mtd->erasesize;
|
||||
#else
|
||||
unsigned int tmp, tmp2 = 32;
|
||||
#endif
|
||||
gt_imghdr_t *hdr;
|
||||
|
||||
hdr = (gt_imghdr_t *)(rdc3210_map.map_priv_1);
|
||||
|
||||
if(memcmp(hdr->magic, GTIMG_MAGIC, 4))
|
||||
#ifdef CONFIG_MTD_REDBOOT_PARTS
|
||||
if (parsed_nr_parts == 0)
|
||||
{
|
||||
printk("Invalid MAGIC for Firmware Image!!!\n");
|
||||
return -EIO;
|
||||
int ret = parse_redboot_partitions(rdc3210_mtd_info, &parsed_parts, 0);
|
||||
if (ret > 0)
|
||||
{
|
||||
part_type = "RedBoot";
|
||||
parsed_nr_parts = ret;
|
||||
} else {
|
||||
printk(KERN_ERR "rdc3210: failed to parse RedBoot partitions, using static mapping\n");
|
||||
add_mtd_partitions(rdc3210_mtd_info, rdc3210_parts, sizeof(rdc3210_parts)/sizeof(rdc3210_parts[0]));
|
||||
return -ENXIO;
|
||||
}
|
||||
}
|
||||
|
||||
#if RDC3210_FACTORY_DFLT
|
||||
/* 1. Adjust Redboot */
|
||||
tmp = flashdrv_get_size() - rdc3210_parts[4].size;
|
||||
rdc3210_parts[4].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
|
||||
rdc3210_parts[4].size = flashdrv_get_size() - rdc3210_parts[4].offset;
|
||||
|
||||
/* 2. Adjust NVRAM */
|
||||
tmp -= rdc3210_parts[3].size;
|
||||
rdc3210_parts[3].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
|
||||
rdc3210_parts[3].size = rdc3210_parts[4].offset - rdc3210_parts[3].offset;
|
||||
|
||||
/* 3. Adjust Factory Default */
|
||||
tmp -= rdc3210_parts[2].size;
|
||||
rdc3210_parts[2].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
|
||||
rdc3210_parts[2].size = rdc3210_parts[3].offset - rdc3210_parts[2].offset;
|
||||
|
||||
/* 4. Adjust Linux (Kernel + ROMFS) */
|
||||
rdc3210_parts[0].size = rdc3210_parts[2].offset - rdc3210_parts[0].offset;
|
||||
|
||||
/* 5. Adjust ROMFS */
|
||||
tmp = hdr->kernelsz + sizeof(gt_imghdr_t);
|
||||
rdc3210_parts[1].offset = rdc3210_parts[0].offset + (((tmp / tmp2) + ((tmp % tmp2) ? 1 : 0)) * tmp2);
|
||||
rdc3210_parts[1].size = rdc3210_parts[2].offset - rdc3210_parts[1].offset;
|
||||
#else
|
||||
/* 1. Adjust Redboot */
|
||||
tmp = flashdrv_get_size() - rdc3210_parts[3].size;
|
||||
rdc3210_parts[3].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
|
||||
rdc3210_parts[3].size = flashdrv_get_size() - rdc3210_parts[3].offset;
|
||||
|
||||
/* 2. Adjust NVRAM */
|
||||
tmp -= rdc3210_parts[2].size;
|
||||
rdc3210_parts[2].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
|
||||
rdc3210_parts[2].size = rdc3210_parts[3].offset - rdc3210_parts[2].offset;
|
||||
|
||||
/* 4. Adjust Linux (Kernel + ROMFS) */
|
||||
rdc3210_parts[0].size = rdc3210_parts[2].offset - rdc3210_parts[0].offset;
|
||||
|
||||
/* 5. Adjust ROMFS */
|
||||
tmp = hdr->kernelsz + sizeof(gt_imghdr_t);
|
||||
rdc3210_parts[1].offset = rdc3210_parts[0].offset + (((tmp / tmp2) + ((tmp % tmp2) ? 1 : 0)) * tmp2);
|
||||
rdc3210_parts[1].size = rdc3210_parts[2].offset - rdc3210_parts[1].offset;
|
||||
#endif
|
||||
|
||||
rdc3210_mtd->module = THIS_MODULE;
|
||||
add_mtd_partitions(rdc3210_mtd, rdc3210_parts, sizeof(rdc3210_parts)/sizeof(rdc3210_parts[0]));
|
||||
add_mtd_partitions(rdc3210_mtd_info, parsed_parts, parsed_nr_parts);
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
iounmap((void *)rdc3210_map.map_priv_1);
|
||||
iounmap(rdc3210_map.virt);
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
mod_exit_t cleanup_rdc3210_map(void)
|
||||
static void __exit rdc3210_mtd_cleanup(void)
|
||||
{
|
||||
if (rdc3210_mtd)
|
||||
if (rdc3210_mtd_info)
|
||||
{
|
||||
del_mtd_partitions(rdc3210_mtd);
|
||||
map_destroy(rdc3210_mtd);
|
||||
del_mtd_partitions(rdc3210_mtd_info);
|
||||
map_destroy(rdc3210_mtd_info);
|
||||
}
|
||||
|
||||
if (rdc3210_map.map_priv_1)
|
||||
{
|
||||
iounmap((void *)rdc3210_map.map_priv_1);
|
||||
rdc3210_map.map_priv_1 = NULL;
|
||||
|
||||
if (rdc3210_map.virt) {
|
||||
iounmap(rdc3210_map.virt);
|
||||
rdc3210_map.virt = 0;
|
||||
}
|
||||
}
|
||||
|
||||
module_init(init_rdc3210_map);
|
||||
module_exit(cleanup_rdc3210_map);
|
||||
module_init(rdc3210_mtd_init);
|
||||
module_exit(rdc3210_mtd_cleanup);
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DESCRIPTION("RDC3210 flash map driver");
|
||||
MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
|
||||
|
||||
@ -6,7 +6,7 @@ diff -urN linux-2.6.17/drivers/mtd/maps/Kconfig linux-2.6.17.new/drivers/mtd/map
|
||||
Ltd. in Japan. It uses CFI-compliant flash.
|
||||
|
||||
+config MTD_RDC3210
|
||||
+ tristate "CFI Flash devcie mapped on RDC3210"
|
||||
+ tristate "CFI Flash device mapped on RDC3210"
|
||||
+ depends on X86 && MTD_CFI && MTD_PARTITIONS
|
||||
+ help
|
||||
+ RDC-3210 is the flash device we find on Ralink reference board
|
||||
|
||||
Loading…
Reference in New Issue
Block a user